Laser-Rf double-resonance studies of the hyperfine structure of metastable atomic states of55Mn

1979 ◽  
Vol 291 (3) ◽  
pp. 207-218 ◽  
Author(s):  
J. Dembczyński ◽  
W. Ertmer ◽  
U. Johann ◽  
S. Penselin ◽  
P. Stinner
Keyword(s):  
Hyperfine Structure ◽  
Double Resonance ◽  
Atomic States

Nuclear Quadrupole Hyperfine Structure in the Rotational Spectrum of 3-Chloropyridine. An Application of Microwave-Microwave Double Resonance Fourier Transform Spectroscopy

1988 ◽  
Vol 43 (7) ◽  
pp. 657-661 ◽  
Author(s):  
N. Heineking ◽  
H. Dreizler
Keyword(s):  
Fourier Transform ◽  
Hyperfine Structure ◽  
Double Resonance ◽  
Fourier Transform Spectroscopy ◽  
Coupling Constants ◽  
Rotational Spectrum ◽  
Rotational Constants ◽  
Modulation Technique ◽  
Quadrupole Coupling ◽  
Nuclear Quadrupole

AbstractWe redetermined the rotational and the chlorine-35 and nitrogen-14 nuclear quadrupole coupling constants of 3-chloropyridine. The values are A = 5839.5330(12) MHz, B = 1604.1875(6) MHz, and C = 1258.3121 (5) MHz for the rotational constants, and χaa(Cl) = - 72.255(19) MHz, χbb(Cl) = + 38.500(13) MHz, χcc(Cl) = + 33.755(23) MHz and χaa(N) = - 0.009(13) MHz, χbb(N) = - 3.473(10) MHz, χCC(N) = + 3.482(16) MHz for the chlorine-35 and nitrogen-14 nuclear quadrupole coupling constants, respectively.Application of double resonance modulation technique is shown to greatly simplify the assign­ment of hyperfine structure components even of weak rotational transitions.

HYPERFINE STRUCTURE OF THE LEVEL OF LITHIUM-6 AND LITHIUM-7

1965 ◽  
Vol 43 (5) ◽  
pp. 770-781 ◽  
Author(s):  
George J. Ritter
Keyword(s):  
Radio Frequency ◽  
Hyperfine Structure ◽  
Double Resonance ◽  
Resonance Method ◽  
Magnetic Interaction ◽  
Level 2

The hyperfine structure of the level 2 2P1/2 of both 6Li and 7Li has been investigated by means of the optical–radio–frequency double-resonance method. The following values were obtained for the magnetic interaction constants of the two isotopes:[Formula: see text]The gJ value for the 2P1/2 level was found to be −0.6668 ± 0.0020.

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